What ginger is
Ginger is the underground stem of a flowering plant, used as a spice and a remedy for thousands of years. As a supplement it comes as capsules, powders, teas, and chews. Its active compounds, gingerols and shogaols, give it both its bite and much of its biological activity.
How ginger works
Ginger appears to act on the gut and on the signals that trigger nausea. It can speed the movement of food out of the stomach and dampen the queasy signalling that makes you feel sick. These actions line up well with its most reliable use, easing nausea.
What the human research shows
Ginger is a rare supplement with genuinely solid evidence for a specific use. Trials and reviews show that around 1 g to 1.5 g per day eases nausea from pregnancy, motion sickness, and some medical procedures, though it reduces the feeling of sickness more than actual vomiting. Major obstetric guidance recognises ginger as an option for pregnancy nausea.
For general digestion, a meta-analysis found ginger improved symptoms of a sluggish, uncomfortable stomach compared with placebo. Evidence for period discomfort and muscle soreness is weaker but promising. We grade the overall evidence as moderate, strongest for nausea and reasonable for digestion.
What we still do not know
- The best form and dose for different kinds of nausea.
- How much ginger helps period pain and muscle soreness in robust trials.
- Whether long-term daily use offers benefits beyond symptom relief.
How people take ginger
For nausea, doses near 1 g to 1.5 g per day, split into smaller amounts, match the research. Going much higher is not clearly better and can upset the stomach. If you are pregnant or take blood-thinning medicine, check with your healthcare provider before using medicinal doses.